Oil-burner.



. like,

FELIX J. yivrexnnini, or siiirulfriin,"wiisiiivcrron.'`

To all who/m, it may concern.'

Be itknown that I, FELIX J. MCKENNA, citizen of the United States,residing at Seattle, in the county of King and State of Vashington, haveinvented a certain 'new and useful Improvement in Oil-Burners, of whichthe following is a specification.

My invention relates to improvements in burners which are adapted toburn fluid fuel, such as crude oil, kerosene, gasolene and the and theobject of my invention is. to provide a burner which shall be moresimple in its plan of construction more easily cleaned and moreeiiicient in its operation than are burners heretofore made, and whichshall be adapted to burn dierent mineral oil products; and a furtherobject of my invention is to provide a burner that may be operativelydisposed to heat different kinds of steam boilers or other devices.

I accomplish 4these objects by devices illustrated in the accompanyingdrawings whereiii- Figure 1 is a view in side elevation of a burnerembodying my invention as it'appears when attached to a fuel supplypipe;

Fig. 2 is a view of thev same in elevation of the delivery end;

Fig. 3 is a view of the same in longitudinal mid-section on broken line3, 3 of Fig. 1;

Fig. 4 is a view of the same in crosssection on broken line 4:, 4 ofFig. 3; U

Fig. 5 is a view lof the same in longitudinal mid-section on brokenlines 5, 5 of Fig.

3; and

Fig. 6 is a view in perspective of a detail of my invention. y

Referring to the drawings, throughout which like reference numeralsindicate like parts, a fluid fuel burner is formed of two separableparts 7 and 8 to provide a mixing chamber 9 having an internallyscrewthreaded inlet passageway that extends through the outer endportion of the part 8, as shown in Figs. 3 and 5, which inlet passagewayis adapted to screw on to one end of a fluid fuel supply pipe 10, asshown in Fig. 1, which pipe 10 may be-extended to a source of acombustible mixture, as oil and air and steam under pressure.

The chamber 9 is also provided with an outlet passageway 11 of the formof a narrow slot disposed to extend through the outer end portion of thepart 7 and trans- Specification of Letters Patent.

Patenten oct. 9, 1917.

Application 1ed February 19, 1917. Serial JNo. 149,701.v

versely thereof, the opposite end walls of said slot converging inwardlyto said chainber 9 to form said passageway 11 at a point adjacentv tosaid chamber ,9 as indicated Y more clearly inFigs. 5 and 6.

In order that thepassageway 11 maylbe readily cleaned, one of its sidewalls consists of afremovable block 12 while its opposite side wall isintegralwith the part 7, as

shownl moreclearly in Figs.'2 andV 3.

The block 12, as shown `in Fig. 6,is pro-- vided with a packing made ofa piece of soft metal wire 13, as of copper wire, bent into the form ofa semi-circle, which forms a semi-circular ridge on its bottom sidesurface, and on its side opposite thepassageway 11 isa recess 14 whichis adapted to receive the conical end of a screw 15 that is screwedthrough a lug 16 which is integral with the part 7 as shown more clearlyin Fig. 3, whereby the conical end of said screw 15 engages with thewall of the recess 14 in such manner thatrthe block 12 is forced to itsproper position to make a tight joint between the packing wire 13 andits seat on l the part 7 and to form one wall of the passageway 11. l

As shown in Figs. 3 and 5,the wall of the chamber 9 diverges from theinlet passage way through the outer end of the part 8 to the inner endof said part S and it converges from the inner end of the part 8 to theoutlet passageway 11.

Clamped between the surface of the inner end of the part 8 and ashoulder formed on the inner side of the part 7 are the four radial lugs17 which are integral with a concentrically disposed deflector 18thatpis tapered in both of opposite directions from said lugs 17 to formtwo conical portions whose bases are integrally united, whereby thepassageway through the chamber 9 will be expanded in the central portionof said chamber 9 and be contracted at each of the opposite endsthereof. v

In the operation of a burner embodying my invention as illustrated anddescribed, a combustible mixture (as, for instance, a' mixture ofvaporized `mineral oil and air or steam) under pressure is conducted bythe pipe 10 into the inlet passageway of the part 8 to impinge againstthe pointed end of the deflector 18 and thence flow through the annularpassageway vsurrounding said deflector 18 to and out through the narrowslot forming the outlet passageway 11 of the part 7 from which it isemitted in such form that when ignited it will make a flame of a formthat resembles the tail of a fish.

The deflector 18 serves thoroughly to' intel-mingle the ingredients ofthe combustible mixture since such mixture in the vcourseof its passagethrough the annular space surrounding said deliector 18 is caused iirstto be permitted to expand and then to be contracted in volume.

.1f it be desired to cleanthe burner the parts 7 and 8 may be separatedin an obvious manner to remove the deflector 18 thus gaining access tothe chamber 9, and the passageway 11 may be cleaned upon removing theblock 12 by unscrewing the screw 15 to disengage it from said block 12.

4Cbviously,` changes may be made in the dimensions of parts of myinvention without departing from the spirit thereof.

l/V hat I claim is:

An oil burner of the class described, which embodies an inlet and anoutlet passageway; a mixing chamber forming a passageway between saidoutlet and said inlet passageway; a tapered delector concentricallydisposed within said mixing chamber; a removable block disposed adjacentsaid outlet end to afford a means for cleaning said outlet passageway,said block having a conical recess therein, and a radially disposedscrew having a conical end engaging' into said recess to press and holdthe block in position.

1n witness whereof, I hereunto subscribe my naine this 6th day ofFebruary, A. D., 1917. l

FELX J. MCKENNA.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

